95results about How to "Reduce processing area" patented technology

The invention discloses a machining process of middle-long thin-wall blades, which belongs to the technical field of machining of blades. The machining process is implemented by a detailed process of integrated rough machining and integrated fine machining, wherein the integrated rough machining comprise the specific steps of rough machining of each surface of a blade tip, each surface of a blade root and a molded surface of a steam passage; and the integrated fine machining comprises the specific steps: semifinishing of each surface of the blade tip and each surface of the blade root, fine machining of each surface of the blade tip, each surface of the blade root and each residue, semifinishing of the steam passage and fine machining of the steam passage. According to the machining process of the middle-long thin-wall blades, the operation is simple and convenient, the use is convenient and fast, the cost is low, the machining efficiency is high, and the operation is easy and labor-saving; and the deformation of the middle-long thin-wall blades is controlled within 0 to 0.8mm, the normal machining of a subsequent mold correction process is facilitated, and the machining of each blade is finished once.

The invention discloses an automatic method for eliminating a red eye, directly utilizing a human face image of a YUV format to eliminate and revise the red eye. A red-eye positioning operation comprises an image dividing step, a closed calculation step and a geometric characteristic limiting step, wherein in the image dividing step, redness division is carried out on an input YUV format drawing by directly utilizing an Y quantity and a V quantity to obtain a binary image of a plurality of communicating regions. For removing an isolating noise point and filling a hole of a division region, closed calculation operation can be carried out on each divided region, and a value of a mask size m is determined through size self-adaptation of the human face image in the invention. In the geometric characteristic limiting step, geometric characteristic detection is carried out on each communicating region in the binary image containing a plurality of communicating regions, and each communicating region which accords with the geometric characteristic of the red eye is determined as a red-eye region; and red-eye revision is carried out on the red-eye region in the human face image. The treatment speed of red-eye elimination can be enhanced by using the invention.

Provided is a pre-tensioned prestressed composite beam, which is an I-shaped beam composed of H-shaped steel and concrete, the web plate of the H-shaped steel is provided with trapezoidal holes (14) at intervals, the upper flange and the lower flange of the H-shaped steel are welded with shearing nails, the outer periphery of the lower flange is enclosed with concrete to form a steel-concrete lower flange (4), and the inside of the steel-concrete lower flange is embedded with prestressed steel twisted wire by pretensioning method. The manufacturing method of the composite beam is that: a steel plate is cut into two tooth-shaped plates along tooth-shaped line to be respectively as the trapezoidal hole plates of the H-shaped steel flange, the trapezoidal hole plates are welded with steel plates to form the web plate, the web plate is welded with the upper flange and the lower flange to form the H-shaped steel (1) having trapezoidal holes, the H-shaped steel is put on a base surface with the lower flange downward, the two sides of the lower flange are provided with side molds, a stirrup (7) is arranged and steel twisted wires (3) are longitudinally fastened between the two side molds, the steel twisted wire is tensioned to tensioning state, the concrete for enclosing the H-shaped lower flange is poured and tamped between the two side molds, the steel-concrete lower flange (4) is formed after demolding, and the steel twisted wire at tensioning state is loosened after the concrete reached to predetermined strength and is cut off at predetermined position. The invention is suitable for beams of buildings.

The invention belongs to the technical field of flexible devices, and particularly relates to an electrochemical cell. The electrochemical cell comprises positive electrodes, a separator, negative electrodes, an electrolyte and an external packaging structure, wherein the sum n of the number of the positive electrodes and the number of the negative electrodes is an odd number; the external packaging structure at least comprises an positive current collector a and/or a negative current collector b; and the external packaging structure is a tab of the cell. The outermost electrode current collector of the cell serves as the packaging material of the cell and one of the tabs (and thus the cell only needs one special tab), so that the species and using amount of the materials are reduced, and the material cost is reduced; meanwhile, the energy density of the cell is improved; and moreover, in the preparation process, packaging assisted treatment is carried out on the current collector on a sealing side only, so that the problem of packaging reliability can be solved, the treatment cost can be reduced (the using amount of an expensive treating fluid is reduced), and finally the side effects of electrode impedance increase caused by packaging assisted treatment can also be reduced.

The invention relates to an electrode and machining device and method for electrolytic cutting rapid forming of a turbine disc mortise, and belongs to the technical field of aero-engine turbine disc mortise electric machining. The electrode is a cutting electrode and is used for serving as a tool cathode on an electrolytic machine tool to carry out rapid cutting forming machining on the turbine disc mortise. The machining device adopting the electrode as the cutting electrode comprises a power source, a work box, a turbine disc part, the cutting electrode, a workpiece clamping and locating system and an electrolyte circulating system. The method adopting the device for cutting machining comprises the steps that equipment is mounted, alignment is carried out, a machining gap is adjusted, cutting machining is carried out, machining parameters are controlled in the machining process, after machining is completed, the turbine disc part is rotated to the next station in an indexing manner,and the process is repeated till electrolytic cutting machining of the whole turbine disc mortise is completed. The method adopts the cutting electrode for electrolytic cutting rapid forming, and through the electrolytic cutting rapid forming machining technological process, high-efficiency and high-quality machining of the turbine disc mortise is completed.

The invention discloses a butt welding machine for constructional engineering, and mainly relates to the technical field of constructional engineering equipment. The butt welding machine comprises a machine frame; a guide column is horizontally arranged at the top of the machine frame; a fixed base is arranged at one end of the guide column; a first supporting base is arranged at the top of the fixed base; a plurality of first V-shaped grooves are formed in the top of the first supporting base; a first positioning check block is arranged at one end of the first supporting base; a first clamping block is arranged on the first supporting base; a second supporting base is arranged at the top of a movable base; second V-shaped grooves are formed in the second supporting base; a second positioning check block is arranged at one end of the second supporting base; a second clamping block is arranged on the second supporting base; and a propelling oil cylinder is arranged on one side, far away from the fixed base, of the movable base. The butt welding machine has the advantages that building materials such as reinforcing steel bars or square tubes to be welded can be rapidly and effectively aligned and clamped, the positioning precision can be guaranteed, the time occupied by welding preparation work can be shortened, and the working efficiency can be improved.

The invention relates to a railway roadbed structure for reducing roadbed settlement deformation through an opposite-pulling rib U-shaped groove. The U-shaped reinforced concrete groove with an upwardnotch is formed in the bottom and filled with a roadbed stacking and filling material, the top of the roadbed stacking and filling material is flush with the top edge of the U-shaped reinforced concrete groove and provided with railway ballast, and a railway track structure is arranged above the railway ballast; and opposite-pulling ribs are transversely arranged in the U-shaped reinforced concrete groove, and the two ends of each opposite-pulling rib extend out of the U-shaped reinforced concrete groove. On the one hand, lateral deformation of a roadbed body is greatly restrained through theU-shaped opposite-pulling reinforced concrete groove, roadbed body stuffing is stacked and filled or concrete is poured within the limited space with lateral confinement, and roadbed body settlementis controlled to a great degree; and on the other hand, the occupied width of the bottom of a roadbed is greatly reduced, and plenty of requisition land and plenty of foundation treatment area are saved.

The invention discloses an impermeable type lime-soil compaction pile composite manual foundation. A lime-soil compaction pile impermeable layer (1) is arranged on the periphery of a collapsibility soil layer (3) which is in a construction foundation range, a lime-soil impermeable layer (2) is arranged on the upper side of the collapsibility soil layer (3) and at the top of the lime-soil compaction pile (1); wherein the lime-soil compaction pile impermeable layer (1) and the lime-soil impermeable layer (2) can form an impermeable outer shell and the impermeable outer shell is shaped like a reversed Chinese character 'ao'. The bottom of the lime-soil compaction pile impermeable layer (1) is a non-collapsibility soil layer. The impermeable layer is arranged at the top and on the periphery of the foundation in the construction foundation range and water can be prevented from entering into a collapsibility loess layer. Collapsibility can not be conducted to the foundation and the security of upper architectural structures can be guaranteed. The impermeable type lime-soil compaction pile composite manual foundation can relatively reduce the area and the depth of foundation treatment. Construction cost is low. Treatment expense is saved and construction period is shortened.

The invention discloses a machine tool stand column. The machine tool stand column comprises a column body, a base, linear rails which are arranged on one side of the exterior of the column body and used for connecting a machine tool spindle head and a top used for fixing a counterweight stretcher, a guide chain and a balancing weight; the interior of the column body is provided with a cavity and reinforcing ribs shaped like a Chinese character 'mi'; the base comprises connecting parts used for connecting a machine tool pedestal and a base body arranged between the column body and the connecting parts; the base body symmetrically extends from the two sides of the lower portion of the column body. The machine tool stand column is high in structural strength, large in carrying capacity, high in stability, low in stand column cost, small in machining area and capable of effectively reducing vibration generated when a machine tool machines a workpiece.

The invention discloses a heat transfer strengthened external heat rotary type organic polluted soil thermal desorption device and belongs to the technical field of polluted soil restoration. The heattransfer strengthened external heat rotary type organic polluted soil thermal desorption device comprises a raw soil feeding device, a rotary external heat type reactor and a purified soil discharging device. The heat transfer strengthened external heat rotary type organic polluted soil thermal desorption device can achieve larger processing capacity and a smaller processing area under the condition of identical unit processing energy consumption.

The invention belongs to the technical field of flexible devices, and particularly relates to an electrochemical battery. The electrochemical battery comprises positive electrodes, an isolating membrane, negative electrodes, an electrolyte and an outer package structure, wherein the sum n of the number of the positive electrodes and the number of the negative electrodes is an even number; the outer package structure at least comprises a positive current collector a or/and a negative current collector b; and the outer package structure is a positive tab and a negative tab of a battery core respectively. The electrode current collectors at the outmost layer demonstrate the functions of the package material of the battery and the battery tabs; the variety and the comsumption of materials are reduced; the material cost is reduced; meanwhile the energy density of the battery is improved; and in the preparation process, only the current collectors on the seal edge are subjected to packaging assistant treatment, so that the problems of the package reliability can be solved; the treatment cost can be reduced (the consumption of an expensive treating fluid is reduced); and finally the side effect of an electrode impedance increase caused by the packaging assistant treatment can also be reduced.

The invention discloses an external thermal rotary organic contaminated soil thermal desorption device with an inner tube bundle, and belongs to the technical field of soil remediation of contaminatedsites. The device comprises a raw earth feeding device, a rotary external thermal reactor and a pure soil discharging device. The external thermal rotary organic contaminated soil thermal desorptiondevice with a heat transfer enhancement function has a larger processing capacity and a smaller processing area in the case of the same unit processing energy consumption.

The invention belongs to the technical field of chip-resistant plates, and particularly relates to a manufacturing method for a chip-resistant plate of a lower tube seat. The technical scheme of the invention comprises the following steps of: processing a middle hole and a guide hole; processing a bottom square hole; processing the appearance of the chip-resistant plate; leveling; performing ageing treatment; and processing a square hole. Due to the adoption of the manufacturing method, the technical problems of high local electrode loss and low working efficiency caused by frequent secondary discharge since an electrical erosion product is difficult to discharge in time in the conventional chip-resistant plate are solved. According to the invention, the processing area of an electric spark machine tool is reduced by 80 percent, the electrical erosion product is discharged in time, and high local electrode loss caused by frequent secondary discharge is avoided; and moreover, the square hole is processed by adopting a combined electrode, so that replacement of an electrode is avoided, maintenance is facilitated, and working efficiency is greatly increased.

The invention relates to the field of composite materials, and provides a curved surface composite material connecting structure, a forming method and a rail vehicle. The curved surface composite material connecting structure comprises a pair of composite material curved surface skins and a connecting beam, wherein the pair of composite material curved surface skins is spliced on the outer surfaceof the connecting beam; the curved surface composite material connecting structure further comprises a plurality of thickening sheets which are fixedly arranged on the bonding surface of each composite material curved surface skin correspondingly; the plurality of thickening sheets are arranged on the bonding surface of each composite material curved surface skin at intervals; the bonding surfaceof each composite material curved surface skin is in contact with the outer surface of the connecting beam through the thickening sheets; a gap is formed between each composite material curved surface skin and the outer surface of the connecting beam; and the gaps are filled with adhesive layers. According to the curved surface composite material connecting structure, the forming method and the rail vehicle, the machining, connecting and assembling difficulty of the whole composite material connecting structure can be reduced, so that the structure is firmer when the composite material curvedsurface skin is bonded with the connecting beam.

The invention provides a shear-stress-resisting flange butt joint device. The device comprises a flange plate I, a flange plate II, bolt fasteners, a safety device, a connecting body and a connecting body. The flange plate I and the flange plate II are square plates in shape. Opening grooves are formed in the lower middle portions of the flange plate I and the flange plate II. A transversely-through groove is formed in the middle of the butt joint face of the flange plate I and the flange plate II. The height of the groove is consistent with the height of the flange plate II. The depth of the groove is consistent with the thickness of the flange plate II. The groove is in clearance fit with the flange plate II. Bolt connecting holes are formed in the peripheral edges of the flange plate I and the flange plate II. The flange plate I is welded to the end face of the corresponding connecting body, and the flange plate II is welded to the end face of the corresponding connecting body. The flange plate II is embedded in the groove in the flange plate I and is fastened through the bolt fasteners, and the connecting bodies are in butt joint. After the flange connecting structure of the shear-stress-resisting flange butt joint device is adopted, the connecting face is allowed to bear large shear force, bolts are protected, and the connecting reliability is improved.

A magnetic head (71) can be prevented from being in contact with a data-recording region (3) during record reproduction. The data-recording region (3), with an annular shape, having tracks (22, 22, ..) separated from each other by coaxial grooves (21, 21, ..) is formed on at least one face of a disk-like base member (2). Grooves (23, 23, ..) capable of regulating a lift force (F) applied to the magnetic head (71) are formed in at least either an outer region (4) positioned outside the data-recording region (3) on the one face or an inner region (5) positioned inside the data-recording region (3) of the one face.